From: Yoshihiro Shimoda <shimoda.yoshihiro@xxxxxxxxxxx>
CPU/board specific parameters (PLL clock, vif etc...) can be set
by platform_data instead of module_param.
v2: remove irq_sense member in platform_data because it can OR in
IRQF_TRIGGER_LOW or IRQF_TRIGGER_FALLING against IORESOURCE_IRQ in
the struct resource.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@xxxxxxxxxxx>
Reviewed-by: Paul Mundt <lethal@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/host/r8a66597-hcd.c | 60 +++++++++-----------------------------
drivers/usb/host/r8a66597.h | 38 ++++++++++++++++++++++--
include/linux/usb/r8a66597.h | 44 ++++++++++++++++++++++++++++
3 files changed, 92 insertions(+), 50 deletions(-)
create mode 100644 include/linux/usb/r8a66597.h
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 3e1216a..56976cc 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -46,31 +46,10 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yoshihiro Shimoda");
MODULE_ALIAS("platform:r8a66597_hcd");
-#define DRIVER_VERSION "10 Apr 2008"
+#define DRIVER_VERSION "2009-05-26"
static const char hcd_name[] = "r8a66597_hcd";
-/* module parameters */
-#if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
-static unsigned short clock = XTAL12;
-module_param(clock, ushort, 0644);
-MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 "
- "(default=0)");
-#endif
-
-static unsigned short vif = LDRV;
-module_param(vif, ushort, 0644);
-MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0(default=32768)");
-
-static unsigned short endian;
-module_param(endian, ushort, 0644);
-MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)");
-
-static unsigned short irq_sense = 0xff;
-module_param(irq_sense, ushort, 0644);
-MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 "
- "(default=32)");
-
static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
static int r8a66597_get_frame(struct usb_hcd *hcd);
@@ -136,7 +115,8 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
}
} while ((tmp & USBE) != USBE);
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
- r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0);
+ r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata), XTAL,
+ SYSCFG0);
i = 0;
r8a66597_bset(r8a66597, XCKE, SYSCFG0);
@@ -203,6 +183,9 @@ static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
static int enable_controller(struct r8a66597 *r8a66597)
{
int ret, port;
+ u16 vif = r8a66597->pdata->vif ? LDRV : 0;
+ u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
+ u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
ret = r8a66597_clock_enable(r8a66597);
if (ret < 0)
@@ -2418,6 +2401,12 @@ static int __devinit r8a66597_probe(struct platform_device *pdev)
goto clean_up;
}
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ ret = -ENODEV;
+ goto clean_up;
+ }
+
/* initialize hcd */
hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
if (!hcd) {
@@ -2428,6 +2417,8 @@ static int __devinit r8a66597_probe(struct platform_device *pdev)
r8a66597 = hcd_to_r8a66597(hcd);
memset(r8a66597, 0, sizeof(struct r8a66597));
dev_set_drvdata(&pdev->dev, r8a66597);
+ r8a66597->pdata = pdev->dev.platform_data;
+ r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
@@ -2458,29 +2449,6 @@ static int __devinit r8a66597_probe(struct platform_device *pdev)
hcd->rsrc_start = res->start;
- /* irq_sense setting on cmdline takes precedence over resource
- * settings, so the introduction of irqflags in IRQ resourse
- * won't disturb existing setups */
- switch (irq_sense) {
- case INTL:
- irq_trigger = IRQF_TRIGGER_LOW;
- break;
- case 0:
- irq_trigger = IRQF_TRIGGER_FALLING;
- break;
- case 0xff:
- if (irq_trigger)
- irq_sense = (irq_trigger & IRQF_TRIGGER_LOW) ?
- INTL : 0;
- else {
- irq_sense = INTL;
- irq_trigger = IRQF_TRIGGER_LOW;
- }
- break;
- default:
- dev_err(&pdev->dev, "Unknown irq_sense value.\n");
- }
-
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to add hcd\n");
diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
index f49208f..d72680b 100644
--- a/drivers/usb/host/r8a66597.h
+++ b/drivers/usb/host/r8a66597.h
@@ -30,6 +30,8 @@
#include <linux/clk.h>
#endif
+#include <linux/usb/r8a66597.h>
+
#define SYSCFG0 0x00
#define SYSCFG1 0x02
#define SYSSTS0 0x04
@@ -488,6 +490,7 @@ struct r8a66597 {
#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
struct clk *clk;
#endif
+ struct r8a66597_platdata *pdata;
struct r8a66597_device device0;
struct r8a66597_root_hub root_hub[R8A66597_MAX_ROOT_HUB];
struct list_head pipe_queue[R8A66597_MAX_NUM_PIPE];
@@ -506,6 +509,7 @@ struct r8a66597 {
unsigned long child_connect_map[4];
unsigned bus_suspended:1;
+ unsigned irq_sense_low:1;
};
static inline struct r8a66597 *hcd_to_r8a66597(struct usb_hcd *hcd)
@@ -660,10 +664,36 @@ static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port,
{
unsigned long dvstctr_reg = get_dvstctr_reg(port);
- if (power)
- r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
- else
- r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
+ if (r8a66597->pdata->port_power) {
+ r8a66597->pdata->port_power(port, power);
+ } else {
+ if (power)
+ r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
+ else
+ r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
+ }
+}
+
+static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata)
+{
+ u16 clock = 0;
+
+ switch (pdata->xtal) {
+ case R8A66597_PLATDATA_XTAL_12MHZ:
+ clock = XTAL12;
+ break;
+ case R8A66597_PLATDATA_XTAL_24MHZ:
+ clock = XTAL24;
+ break;
+ case R8A66597_PLATDATA_XTAL_48MHZ:
+ clock = XTAL48;
+ break;
+ default:
+ printk(KERN_ERR "r8a66597: platdata clock is wrong.\n");
+ break;
+ }
+
+ return clock;
}
#define get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2)
diff --git a/include/linux/usb/r8a66597.h b/include/linux/usb/r8a66597.h
new file mode 100644
index 0000000..e9f0384
--- /dev/null
+++ b/include/linux/usb/r8a66597.h
@@ -0,0 +1,44 @@
+/*
+ * R8A66597 driver platform data
+ *
+ * Copyright (C) 2009 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __LINUX_USB_R8A66597_H
+#define __LINUX_USB_R8A66597_H
+
+#define R8A66597_PLATDATA_XTAL_12MHZ 0x01
+#define R8A66597_PLATDATA_XTAL_24MHZ 0x02
+#define R8A66597_PLATDATA_XTAL_48MHZ 0x03
+
+struct r8a66597_platdata {
+ /* This ops can controll port power instead of DVSTCTR register. */
+ void (*port_power)(int port, int power);
+
+ /* (external controller only) set R8A66597_PLATDATA_XTAL_nnMHZ */
+ unsigned xtal:2;
+
+ /* set one = 3.3V, set zero = 1.5V */
+ unsigned vif:1;
+
+ /* set one = big endian, set zero = little endian */
+ unsigned endian:1;
+};
+#endif
+
--
1.6.3.2
--
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